[Click] Discard and memory usage

[Eddie Kohler]

It certainly could be similar !  Let us know if the new patch/Click don't 
solve your issue.

Eddie


Paine, Thomas Asa wrote:
> 	I read seen Eddie's post from a few minutes ago.  I'm guessing
> this is related to the "large" (and largely understated) memory leak I'm
> seeing :) hehe, funny, but a great way to close a Friday!
> 
> Thanks, 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
>    Thomas Paine (paineta at uwec.edu) 
>    University of Wisconsin - Eau Claire 
>    garbage foo(garbage g){return(g);} 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
> 
> -----Original Message-----
> From: click-bounces at pdos.csail.mit.edu
> [mailto:click-bounces at pdos.csail.mit.edu] On Behalf Of Paine, Thomas Asa
> Sent: Friday, June 23, 2006 4:40 PM
> To: Click
> Subject: [Click] Discard and memory usage
> 
> I had a click config that has been running in production for 6 months.
> When I added a Tee element, and ran that, the system ran out of ram in a
> hurry.  I went back on my R&D box and simply did this...
> 
> ############################
> 
>    tee1::PullTee(2);
>    tee2::PullTee(2);
>  
>    outsideRx::PollDevice(eth1) -> Queue -> tee1[0] ->
> insideTx::ToDevice(eth2);
>    insideRx::PollDevice(eth2) -> Queue -> tee2[0] ->
> outsideTx::ToDevice(eth1);
>    tee1[1] -> Discard;
>    tee2[1] -> Discard;
> 
> ############################
> 
> It too runs out of ram (testing with 60Kpps into one side)...  If I
> remove the Tee/Discards all is well.  Is there a problem with tee or
> discard, or am I using it incorrectly?  This was tried on 1.5.0 as well
> as a freshened CVS from this morning.  Also, when the click is
> uninstalled the, memory is not freed, but yet there is no reported
> outstanding "news".  I'm assuming from Tee's description that "Tee sends
> a copy of each incoming packet out each output", it means one "copy" is
> the original memory space and not two more copies.  Any thoughts?
> 
> 
> <removed>/conf# free -m ; date
>              total       used       free     shared    buffers
> cached
> Mem:          2027         64       1962          0          2
> 38
> -/+ buffers/cache:         23       2003
> Swap:            0          0          0
> Fri Jun 23 13:26:39 CDT 2006
> 
> 
> <removed>/conf# click-install tee.click ; date Fri Jun 23 13:26:44 CDT
> 2006 <removed>/conf# free -m ; date
>              total       used       free     shared    buffers
> cached
> Mem:          2027        131       1895          0          2
> 38
> -/+ buffers/cache:         90       1936
> Swap:            0          0          0
> Fri Jun 23 13:26:51 CDT 2006
> 
> 
> <removed>/conf# free -m ; date
>              total       used       free     shared    buffers
> cached
> Mem:          2027        197       1829          0          2
> 38
> -/+ buffers/cache:        156       1870
> Swap:            0          0          0
> Fri Jun 23 13:26:57 CDT 2006
> 
> 
> <removed>/conf# free -m ; date
>              total       used       free     shared    buffers
> cached
> Mem:          2027        256       1770          0          2
> 38
> -/+ buffers/cache:        215       1811
> Swap:            0          0          0
> Fri Jun 23 13:27:03 CDT 2006
> 
> 
> <removed>/conf# free -m ; date
>              total       used       free     shared    buffers
> cached
> Mem:          2027        344       1682          0          2
> 38
> -/+ buffers/cache:        303       1723
> Swap:            0          0          0
> Fri Jun 23 13:27:11 CDT 2006
> 
> 
> <removed>/conf# free -m ; date
>              total       used       free     shared    buffers
> cached
> Mem:          2027        421       1605          0          2
> 38
> -/+ buffers/cache:        380       1646
> Swap:            0          0          0
> Fri Jun 23 13:27:18 CDT 2006
> 
> 
> <removed>/conf# click-uninstall ; date
> Fri Jun 23 13:27:25 CDT 2006
> 
> 
> <removed>/conf# free -m
>              total       used       free     shared    buffers
> cached
> Mem:          2027        481       1545          0          2
> 38
> -/+ buffers/cache:        439       1587
> Swap:            0          0          0
> 
> 
> 
> Thanks,
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
>    Thomas Paine (paineta at uwec.edu) 
>    University of Wisconsin - Eau Claire 
>    garbage foo(garbage g){return(g);}
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
> 
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